加拿大大雁每年冬季都会迁移到南方。
冬天到来之前这些鸟就已迁移到南方了。
The birds will have moved o the south before winter sets in .
V 形与鸣喇叭鸟类充满编队是一种象征侯鸟迁移到南方越冬地及美国，甚至墨西哥东北部。
The V-shaped formations filled with honking birds are a fall staple as the breed migrates to wintering grounds in the southern United States and even northeastern Mexico.
每年大约有20 000只粉足雁在自然保护区停留，一些在这里“加油”，另一些则留了下来；它们从冰岛迁移到南方过冬。
Around 20, 000 pink-footed geese stop off at the nature reserve each year, some to 'refuel' and some stay, as they migrate to the south for the winter from Iceland. (REUTERS/David Moir)
十年一次的下次人口普查将在2020年进行。届时的普查结果将告诉我们迁移到南方的非裔美国人是否足够构成第三次大迁徙。
The next decennial census in 2020 should tell us whether the influx of African-Americans into the South will be large enough to be considered a third Great Migration.
20世纪上半叶，非裔美国人大批的从南方农村迁移到北方城市，随着他们的迁移，他们带走了自己的食谱。
The first half of the 20th century saw a mass migration of African Americans from the rural South to Northern cities, and as they moved, they took their recipes with them.
因为工业迁移到了南方，许多一度繁荣的北方磨坊小镇都减小了规模。
Many once prosperous northern mill towns have shrunk as industry has moved to the South.
因为工业迁移到了南方，许多一度繁荣的北方磨坊小镇都减小了规模。
Many once prosperous northern mill towns have shrunk as industry has moved to the South.
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